ISO 17025 Accredited
View Accreditation Scope
call us anytime


or via the internet
contact osi



Decommissioning Services

OSI follows federal standards and guidelines in the decommissioning of radioactive use areas.  OSI has decommissioned many facilities in the past decade.  We can provide:

  • Historical Site Assessments
  • Scoping and Characterization Surveys
  • Decommissioning Plans
  • Coordination of Radioactive and Hazardous Material Removal and Disposition
  • Final Status Surveys and Verifications
  • Decommissioning Reports
  • License Termination Requests
  • License Amendment and Preparation for New and Replacement Facilities

Certifications and Qualifications

  • Licensed by California Department of Health Services for decommissioning support (License Num. 5149-37)
  • Qualified resources (Bachelors and Masters Degrees in Health Physics, Certification by the American Board of Health Physics, Certified Industrial Hygienist)
  • Department of Transportation (DOT) Hazardous Material Transportation Qualified
  • MARSSIM trained

Standards Used

  • NUREG 1757, Consolidated NMSS Decommissioning Guidance
  • NUREG 1505, A Nonparametric Statistical Methodology for the Design and Analysis of Final Status Decommissioning Surveys
  • NUREG 1575, Mutli-Agency Radiation Survey and Site Investigation Manual (MARSSIM)
  • NUREG 1549, Decision Methods for Dose Assessment to Comply With Radiological Criteria for License Termination
  • NUREG 1507, Minimum Detectable Concentrations with Typical Radiation Survey Instruments for Various Contaminants and Field Conditions
  • NUREG/CR-5512, Residual Radioactive Contamination from Decommissioning
  • NUREG 1748, Environmental Review Guidance for Licensing Actions Associated with NMSS Programs